Friday I picked up a 2002 XE-SC with stock 265/70R16 tires (about 30.6x10.4). I am looking at replacing them with Trxus MT/Radial 265/75R16's (31.6x10.4) Does anyone have any experiences with this size on an '02? Will it rub? And will a spare this size fit under the Xterra?

I've trolled through the archives and haven't found what I'm looking for. I've seen alot of discussion about tire sizes on '99-'01 models, but not so much on the 2002.